BMO-6205-048S2-UA108A sensor bearing unit: specifications & signal data

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 17 sensor bearing units) · extracted 2026-10-19

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 17 sensor bearing units); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.

Cross references & equivalents

No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.

How the BMO-6205-048S2-UA108A model number is decoded

Dimensionally the unit is 25/52/15 mm: the embedded deep groove ball bearing carries the load path and the sensor ring shares that same bore envelope; basic ratings are C 14 kN dynamic and C0 7.8 kN static, with a fatigue load limit of Pu 0.335 kN. Rated 48 pulses per revolution at a period accuracy of ±3%, the unit outputs two 90°-shifted signals held within ±30°; the mechanical limiting speed is 8500 r/min. A 1.795 static-to-dynamic load ratio confirms this is a genuine bearing unit rather than a bearing with a separate magnetic ring: C0 7.8 kN and C 14 kN are the standard ratings for this ISO 15 envelope. 170 g on a 25x52x15 mm envelope, fitted with a 560 mm lead and a AMP Superseal connector. Across the 48-pulse size the plug type is the only electrical difference. Running to its 8500 r/min limit the 48-pulse channel emits 6800 Hz, one pulse per 7.5° of shaft turn — confirm the controller's maximum input frequency is not exceeded. mid-range at 25 mm bore, this unit fits the widest span of standard motor shaft ends without special housing work take the BMO designation in three blocks: bearing size (6205), the /048S2 two-signal pulse count, and the U-plus-cage-plus-connector interface tail. The trailing 108A marks the AMP Superseal connector variant, the plug-and-play interface used where a sealed automotive connector is required; the cable is 5 mm longer than the free-end version of the same size. The U/A block means a stamped steel ball cage, standard for the sizes where the higher load ratings rule out a polymer cage. typical applications include machine-tool spindle position monitoring, industrial automation axis control and conveyor pulley speed and direction sensing this unit is commonly specified for machine-tool spindle position monitoring and industrial automation axis control, where rotor position and speed sensing with a 48-pulse signal fits the controller's input in conveyor pulley speed and direction sensing the integrated bearing carries the shaft load while the sensor ring supplies the signal; the 170 g mass keeps the rotating inertia low the sensor ring and the ball raceway share one compact unit — a bearing that is due for replacement takes the encoder signal with it, so renew both together the patterned sensor track is sensitive to contamination; a recessed or poorly sealed mounting face lets debris interrupt individual pulses the cable tail is part of the unit and cannot be shortened freely — terminating it outside the specified connector changes the screening and can corrupt the signal

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• the sensor ring and the ball raceway share one compact unit — a bearing that is due for replacement takes the encoder signal with it, so renew both together
• the patterned sensor track is sensitive to contamination; a recessed or poorly sealed mounting face lets debris interrupt individual pulses
• the cable tail is part of the unit and cannot be shortened freely — terminating it outside the specified connector changes the screening and can corrupt the signal